Open /System/Library/Extensions/AppleGraphicsControl.kext/Contents/PlugIns/AppleGraphicsDevicePolicy.kext/Contents/Info.plist
Find the Board-ID which used in your config.plist, default in this tutorial is "Mac-B809C3757DA9BB8D". Differs when using different smbios.
Replace the attribute Config2 with none
sudo kextcache -system-prelinked-kernel && sudo kextcache -system-caches
reboot
来源：CSDN
作者：李东233
链接：https://blog.csdn.net/qq_36183235/article/details/103532801